To car through inspection and it failed because C0 % was at 2.47 when it should be at 1.20. when car is in park or reverse it sounds fine however when in drive it sounds as though there is a hole in the manifold or muffler, I took it in for service and no holes where found. what can cause the CO % to be high, also what could make it sound so loud when in drive only?
Oct 20, 2009 at 11:09 AM